<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style>
			
		</style>
		<script src='jquery-3.4.1.js'></script>
		<script src='jquery.easing.1.3.js'></script>
		<script>
			$(function(){
				$("#btn").click(function(){
					//获得表单的内容
					//var con=$("#uname").val();
					//alert(con);
					var con=$("#uname").val('888888888888');
				})
			})
		</script>
	</head>
	<body>
		<input type="button" id='btn' value='按钮'/>
		<input type="text" id='uname' />
	</body>
</html>
